Air-brush



` B. E. HOLTON.

AIR BRUSHI v APPLICATION FILED JUNE 9. ISIIII.l

15,349, 154 Patented Au. 10, 1920.

Z I9@ /8 /ac /4 fab 3 o /Bd [630., /3 /6 Il /7 /9 2/ 2 T I I I I` I I I /Z 42 JZ 3l 38 39 7 Z5 l 40 I 45 6 5 I 34% E S /o 5 l I l $8 l I 3 25 f7 I `I 5.9 5l

I I 60 `/I I` l l GZ @4 65 I I 56 I 4I 65 I l IIIIJII I 2J l I I I I I l I l I I I I I I I I I I I I l I I I I I I I x ,T\ I I (45)" I I l \l\ l I I l i I I- I I 44 L I INI/ENTO/. 5.5.50 Z OfV, 5 SI L,

A TY' @RNE Y.

sis

BIRCHARID E. HOLTON, OF LOS ANGELES, CALIFORNIA.

AIR-BRUSH.

Specification of Letters Patent.

Patented Aug. 10, 1920.

Application filed June 9, 1919. Serial No. 302,981.

To all whom t may concern:

Be it known that I, BIRCHARD E. HoLToN,

a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and Stateof California, have invented new and luseiul Improvements in Air-Brushes, of which the following is a specification.

My object is to make an improved air brush, and my invention consists of the novel features herein shown, described and claimed.

Figure 1 is a side view and partly in section.l

Fig. '2 is a horizontal section on the line 2-2 of Fig. 1.

Fig. 3 is a vertical fragmentary cross section on the line 3 3 of Fig. 1. The cap 1 is screw seated upon the glass jar 2 and has atube outlet 3. The tube 4 iits loosely in the outlet 3 so that air may pass inwardly through the .outlet 3 around the tube and the paint may pass from the jar 2 outwardly through the tube. The base 5 fits upon the upper face of the cap 1 and has a notch *6. A stud 7 is fixed in the cap 1 and a handwheel nut 8 is screw seated upon the stud. A recess 9 is formed inthe upper face of. the base 5 to' receive the base 10 of the nut,so that when the nut is loosened the base 5 will slide with the stud 7 passing through the slot 6 so that the base may be removed and another jar substituted, and so that when the base is placed in posltionl the boss 11 around the outletl opening 3 extends into the slot 6 and the base 10 fits in the recess 9, and when the nut 8 is manipulated and tightened the base is secured to the cap 1.

A pedestal 12 is formed integral with-the base and extends upwardl to a point considerablyabove the handw eel nut 8. Thebarrel 13 is formed integral with the upper part ofthevpedestal 12 and extendshorizontally7 over the nut 8. The barrel 13 has a reduced forward end 14 andthe forward end 'face is cross cut to make the outlet openings 15, and the barrel 13 has a chamber bore 16 extending from its front end ,half way to the back end and a reduced screw threaded bore 17 extending from the bore `16.

The extension piece 18 has an under out opening 18a and the reduced end 14 is inpartly in elevation 18a forms an annular air chamber, The extension piece 18 has a paint chamber 18c bored from its front end. The paint orifice 19 extends from the chamber 18c in line w1th the screw threaded bore 17, said bore 17 being formed and screw threaded through the wall 18d, which separates the paint chamber 18c from the air chamber 18a.

The orifice 19 is formed in a reducer sleeve 19'L and the reducer sleeve is screwed into the end of the extension 18. It is necessary to make the orifice in a separate piece so that the paint chamber 18e may be bored.

The regulating needle 20 has a point eX- tending into the orifice 19 and the body of the needle extends through the chambers 18's and 16 and is screw seated in the bore 17, there being a knurled head 21 upon the outer end of the regulating needle for manually manipulating the needle to regulate the orifice 19.

A 4bore 22 isformed from the end face of the extension piece 18 outside of the reducer 19a to the chamber 18B. After the bore 22 has been formed the air nozzle 26- is placed in position.

The passage 23 extends from the cham-` An external screw thread 27 is formed around the forward end of the extension barrel 18 and the extreme forward end of the barrel is tapered in front of the thread 27 to' make the inner cone 28 around which the air circulates to'and aroundy the paint nozzle 29, the orifice 19 being through the nozzle'29. The'outer wall of the air nozzle 26 consists of a band 30 screw seated upon the thread 27, the cone 31 extendin the band 30 and forming the cham r 32 around the cone 28 and terminating at the forward end of the nozzle 29 and havin a thin outlet 33 around the nozzle 29, an

elbow-shaped arms 34 and 35 extending outwardly from the cone 31 and forwardly Aand inwardly in horizontal alinement with'the outlet of the paint through the orifice 19 and the outlet of the air-through the outlet 33, and having air assages 36 and 37 discharging substantie y at right angles to each other and crosswise of each other and from I at angles of about 45 relative to the line of discharge through the paint orilice 1 9 so as to roduce a fan-shaped spray of paint.

screw .threaded opening 38 vleads through the bottom of the extension barrel 18 to the chamber 18. The upper end of 1 the tube 4 is screw threaded to tit this open- -nip le. 42 screwed into the nipple 40.

he main parts of the handle 41 are all cast integral and the details are as follows:

The hand grip portion 43lhas a lower extension 4'4 and a hose nipple 45 extending laterally from the extension 44. A passage 46 extends from the bore 47 through the hose nipple 45 to a point above the nipple 42. The passage 48 extends from the upper end of the passage 46. A stop lug 5l exl. valve stem 60.

l p lconstruction 59, a trigger 63 is connected to tends from the upper end of the hand grip portion 43.

A valve chamber 52 is drilled from the upper end ofthe casting across the passage 48, a valvepseat 53 is. formed at the lower end of the chamber 52, a valve 54 is mounted upon the valve seat 53 below the passage 48, a spring 55 is mounted upon the valve, and a,cap 56 is placed around the spring and screwed into the chamber 52. A bore 57 is formed from the end of the .nipple 42 Ain line with the bore 25. A bore 58 is formed downwardly from the valve seat 53 to connect the passage 48to the bore 57, and a valve stem bore 59 is formed downwardly from the bore 58. The valve stem 60 is connected to the valve 54 and extends through the bore 59, there being a stuffing `box construction 61 around the A bearing arm 62 extends 'from the main' casting near the stuing bo'x .the bearing arm 62 by a pin 64, and the trigger 63 has a face 65 engaging the lower en lo f the stem 60. An adjusting screw 66 is tapped-into the hand grip lportion. 43 .in-

posltlon to be engaged by the trigger 63,

so that by adjusting the screw 66 the movel* ment of the trigger 63 may be regulated to regulate the openingof the valve 54. The 55 air hose 67 is connected to the hose nipple 45. 1

Thecompressed air will ass through the hose 67,'through the bore 4g, the passage 46 and the bore 48 the valve 54 is opened by manipulating the trigger 635 the compressed air will pass through the bores 57, 25, 23, 16, 18a and 22 to the chamber 32 .and from the chamber 32 will pass through the opening 33 and through the openings .36 and 37.

kdraw the paint from of a flat brush, and

Vthe cap,

to the valve 54 and when The discharge of the compressed air through the openings 36,37 and 33 around the paint nozzle 29 will create a vacuum and the jar 2 through the tube 4 to the chamber 18c and from the chamber4 v18c through the paint nozzle 19 aroundthe needle 20, and .the vacuum of th'e llow of paintwill be regulated by mani ulating the head 21. y

en the air and paintuare flowing properly afan-shaped spray is produced and the spray mayl be directed to serve the purpose the spray is controlled by gripping the hal-nd'k grip 43 and manipu ating the air brush as awhole in `a manner similar to the manipulation of an ordina flat hand brush.

' en it is desired to change the paint. itv

is only necessary to manipulate the rim 39 and nnscrew the tube 4 and manipulatethe nut 8 to raise the base 10 out of the recess 9 then another ap lied. A l

arious changes may 'be made without departing from the spirit of my invention as claimed.

I claim: 1. In an air brush, a paint receptacle, a cap on the paint receptacle, abase removably connected to the cap, a pedestal extending upwardly from the base, a barrel extending from `the upper end of said pedestal, a

jar and anothertube may be paint chamber in said barrel and a nozzle on said barrel leading from said paint chamber, a palnttube screwed into said barrel leading from said chamber and extending leading from the air passage in said pedestalL through the 'forward end ofthe barrel, an air nozzle on the `forward end of the barrel around said paint nozzle, a. valve controlling the supply of air through said passages and said air nozzle, and a said valve. e. Y

v2. In an air brush, a paint receptacle, a cap screwed upon the paint receptacle, atomizer mechanism removably mounted upon and a tube connected to and extending from the atomizer mechanism through the cap into the receptacle.

3. In an air brush, a paint receptacle, a cap on the pai-nt receptacle, a palnt tube extending loosely through the cap into the receptacle, a base removably connected to the cap, a pedestal extending' upwardly from the base, a barrel extending loosely from the upper end of the pedestal and having I a paint chamber and a nozzle, the paint tube triggerA for actuating` las being connected to the barrel to communicate with the chamber, a regulating needle crosswise of each other and crosswise` of the paint discharge at right angles of about 450 so as to produce a fan-shaped spray of paint.

4. In an airbrush, a paint receptacle, a cap on the paint receptacle, a base removably connected to the cap, a pedestal extending upwardly from the base, a barrel eX- l tending from the upper end of said pedestal, a paint chamber in said barrel and "a chamber, -a paint tube connected to said barrel and leading from said chamber loosely through said cap into said recep` tacle, a regulating valve for said nozzle, an

internally threaded nipple on said pedestal, a handle, an externally threaded nipple on' said handle adapted to screw into said internally threaded nipple, said handle being provided with an air passage leading through said externally threaded nipple, a

hose nipple connected to the inlet end of said air passage, said pedestal having an air passa e leading from said air passage in vsaid han le through the air passage in sald externally threaded nipple, said barrel having an air passage leading from the air passage in said pedestal, Athrough the forward end of the barrel, an air nozzle on theforward end of said barrel around said paint nozzle and communicating with the air passage in said barrel, -a lvalve Icontrolling the supply of air through said passages and said air nozzle, and a trigger for actuating said Valve.

5. In an air brush, a paint receptacle, a cap on the paint receptacle, a base removably connected to the cap, a pedestal extending upwardly from the base, a barrel extending from the upper end of said pedestal, a paint chamber in said barrel. and a nozzle on said barrel leading from said paint chamber, a paint tube connected to said barrel and leading from said chamber loosely through said cap into said receptacles, a regulating valve for said nozzle, an internally threaded nipple on said pedestal, a handle, an externally threaded nipple on said handle adapted t0 screw into said internally threaded nipple, said handle being provided with an air passage leading ythrough said externally v threaded nipple, a hose nipple connected to ,theinlet end of said air passage, said pedestal having an air passage leading from said air lpassage in said handle through the air passage -in said externally threaded nipple, nozzle on said barrel leading from said paintV said barrel having an air passage leading from" the v.air passage in said pedestal, through the forward end of the barrel, an air nozzle on the forward end of said barrel around said paint nozzle and communieating with the air passage in said barrel, a Valve mounted in said handle for controlling the supply of air through said air passages and said nozzle, and a trigger mounted on said handle for actuating said valve.

6. In an air brush, a paint receptacle, a cap screwed on to said paint receptacle an atomizer mechanism removably mounte on said cap, said atomized mechanism including a barrel formed with a paint chamber and a tube screwed into' said' barrel communicating with said chamber and extending loosely through said cap into said receptacle.

In testimony whereof I have signed my name to this specification.

BIRCHARD E. HOLTON. 

